JPH10264670A - Shift lever device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shift lever device of reduced parts, reduced assemblage man-hours, improved assemble easiness, and low cost. SOLUTION: In a shift lever device for an automatic transmission in which a moderation lever 7 to integrally rotate with a shift lever 5 is provided, and in which the other end of a plate spring 9 is pressure-applied to a moderation groove 8 formed in the moderation lever 7 to generate feel of moderation in shifting, a spring bearing part 11 is protruded on a side wall of a casing 1 on which the shift lever 5 is rotatably supported to support one end part of the plate spring 9, while the other end part of it is pressed to be in contact with the moderation groove 8, and a middle support point part 12 to be applied to a middle part between one end part and the other end part of the plate spring 9 is protruded on the side wall 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lever device for performing a shift operation of an automatic transmission in an automobile, and more particularly, to a support structure of a leaf spring for generating a sense of moderation during the shift operation.

[0002]

2. Description of the Related Art A shift lever device of an automatic transmission in an automobile shifts to each position by reciprocating a shift lever in the front-rear direction of the vehicle body. ing.

That is, a shift lever is rotatably supported via a shaft in a casing fixed to a vehicle body, and one end of a leaf spring is connected to the shift lever via a bracket with a bolt and a nut or a screw. The other end of the leaf spring comes into pressure contact with a moderation groove having a wavy uneven surface of the moderation block provided on the side wall of the housing, and the other end of the leaf spring is moved with the shift operation of the shift lever. It is intended to get over the uneven surface of the moderation groove and generate a moderation feeling due to the resistance generated at this time.

[0004]

However, according to the prior art, since the leaf spring is connected to the shift lever by means of bolts and nuts or screws, the number of parts is increased, the number of assembly steps is increased, and a narrow housing is required. In addition to the poor assembling workability in the inside, there are drawbacks that lead to an increase in cost. In addition, since the moderation block is fixed and the leaf spring moves together with the shift lever while being elastically deformed, the supporting strength and durability of the leaf spring that operates frequently during vehicle running are reduced, and the damage is easily broken. There is fear.

Accordingly, the present invention provides a shift lever device which has a reduced number of parts and a reduced number of assembling steps to improve assemblability and reduce costs.

[0006]

SUMMARY OF THE INVENTION A shift lever device according to the present invention includes a moderation lever which rotates integrally with the shift lever, and the other end of the leaf spring is pressed against a moderation groove formed in the moderation lever. In a shift lever device of an automatic transmission, which causes a sense of moderation during shifting, one end of the leaf spring is supported by a spring receiving portion protruding from a side wall of a housing that rotatably supports the shift lever. An intermediate fulcrum, which is in contact with an upper surface of an intermediate portion between one end and the other end of the leaf spring, is protruded from the side wall.

The spring receiving portion is a columnar projection, the other end of the leaf spring is an annular shape fitted to the columnar projection, and the spring receiving portion is substantially triangular. A substantially triangular prism-shaped projection having a bottom, wherein the other end of the leaf spring is formed in an annular shape to be placed on the substantially triangular bottom; It is characterized by having a stop.

Therefore, one end of the leaf spring is not supported by the shift lever, but is supported by being fitted into a spring receiving portion protruding from the side wall of the housing and screwed or mounted thereon. By such a simple operation, it is possible to simply and quickly and easily assemble the side wall.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, a shift base 3 is rotatably supported by a housing 1 made of a synthetic resin fixed to a vehicle body via a shaft 2 so as to be rotatable in the front-rear direction of the vehicle body. The shift lever insertion portion 6 that supports the shift lever 5 is formed by rotating the shift lever insertion portion 6 that supports the shift lever 5 in the lateral direction of the vehicle body with the shaft 2a. The shift base 3 is integrally formed with a substantially fan-shaped moderating lever 7 having an arc of a predetermined radius centered on the shaft 2 on the shift base 3. A moderation groove 8 composed of a surface is formed.

The other end of the leaf spring 9 presses against the moderation groove 8,
One end of the leaf spring 9 is supported by a spring receiving portion 11 provided on a side wall 10 of the housing 1. The other end of the leaf spring 9 is formed in a substantially U-shaped bent portion 9c that engages with the concave portion of the moderation groove 8. On the side wall 10 of the housing 1, an intermediate fulcrum portion 12 is provided so as to be in contact with an upper surface of an intermediate portion between one end and the other end of the leaf spring 9. The spring receiving portion 11 and the intermediate fulcrum portion 12 are provided so as to protrude into a concave portion 20 in which a part of the side wall 10 of the housing 1 is depressed inward. A notch 21 continuous to the 10 side is formed. The notch 21 is formed to be curved so that the leaf spring 9 can be inserted. Thus, the leaf spring 9 can be attached simply by inserting it into the spring receiving portion 11 from the outside of the side wall 10.

As shown in FIGS. 4 to 6, the intermediate fulcrum portion 12 is a semi-cylindrical projection and is arranged such that its circular surface comes into contact with the leaf spring 9. As an embodiment of the present invention, a so-called gate-type shift lever device that rotates the shift lever 5 in the front-rear and left-right directions is taken up, but a straight-type shift lever that rotates the shift lever 5 only in the front-rear direction is used. It goes without saying that the present invention can be applied to a device. In this case, the shift base 3 and the shift lever insertion portion are formed integrally. Further, in this embodiment, the spring receiving portion 11 and the intermediate fulcrum portion 12 are provided in the concave portion 20 of the side wall 10 of the housing 1. However, the spring receiving portion 11 and the intermediate fulcrum portion 12 may be provided inside the side wall 10; Since it must be performed in the housing 1, assemblability is reduced.

FIG. 4 is a partially detailed perspective view of FIG. 1, in which a spring receiving portion 11 and an intermediate fulcrum portion 12 are protruded in a concave portion 20 of the side wall 10, and the spring receiving portion 11 has a predetermined height. The intermediate fulcrum portion 12 is integrally formed as a cylindrical projection, and a downwardly facing semi-cylindrical projection having a predetermined height. Also,
A notch 21 is formed on the side surface of the concave portion 20 on the side of the intermediate fulcrum portion 12, which extends to the side wall 10 side. The notch 21 is formed in a curved shape along the leaf spring 9 so that the leaf spring 9 can be inserted. On the other hand, one end of the leaf spring 9 is formed by bending into an annular portion 9a into which the spring receiving portion 11 is fitted. Therefore, when assembling, the ring 9a of the leaf spring 9 is inserted into the spring receiving portion 11 such that the other end of the leaf spring 9 is inserted into the notch 21 from outside the side wall 10, and then the intermediate portion of the leaf spring 9 is inserted. The other end may be pressed against the moderation groove 8 of the moderation lever 7 while the upper surface of the section is stopped at the intermediate fulcrum portion 12. Therefore, the leaf spring 9 can be assembled simply by inserting it into the spring receiving portion 11 from the outside.

FIG. 5 shows a second embodiment of the present invention, in which a spring receiving portion 11 places one end of a flat leaf spring 9a and drills it at one end thereof. A projection 15 having a flat portion fixed by a screw 14 penetrating through the through hole 13 is formed. The other configuration is the same as that of the previous example, and a duplicate description thereof will be omitted.

FIG. 6 shows a third embodiment of the present invention, in which a spring receiving portion 11 has a substantially triangular prism 17 having a substantially triangular bottom 17 on which one end of a leaf spring 9 is placed. The shape projection 16 is used. The leaf spring 9 in this example has an annular portion 9b formed in a direction opposite to the annular portion 9a at one end of the leaf spring 9 in FIG. 4, and the other configuration is the same as the previous example. Is omitted. In this example, an annular one end of the plate spring 9 is fitted to the substantially triangular bottom 17, the other end is pressed against the moderation groove 8, and the substantially middle part is pressed down by the middle fulcrum part 12. It is intended to maintain the assembly normal condition.

FIG. 7 shows another example of the intermediate fulcrum portion 12, in which a retaining portion 18 is integrally formed at the end of the intermediate fulcrum portion 12 of the semi-cylindrical projection. This retaining portion 18 is formed in a key shape by extending downward to prevent the leaf spring 9 from moving in the width direction, as shown in FIG.
The leaf spring 9 is sandwiched together with the side wall 10. The retaining of the leaf spring 9 in FIG. 6 can be achieved by closing the end of the triangular prism-shaped projection 16 as shown in the figure, so that the intermediate fulcrum 12 having a key-shaped end is doubled. Can be formed.

Thus, in the leaf spring supporting structure shown in FIGS. 4 and 6, the assembling property is improved by a simple operation of merely fitting the other end of the leaf spring 9 to the spring receiving portion 11 without using a screw. Further, in the leaf spring support structure shown in FIG. 5, it is not necessary to use a strength member for the projection 15 to which the screw 14 is screwed.
Since the projection 15 can be formed integrally with the housing 1 made of a synthetic resin, the number of parts can be reduced and the cost can be reduced.

[0017]

According to the present invention described above, since the leaf spring can be supported by the resin spring receiving part, the number of parts can be reduced, the number of assembling steps can be reduced, and the assemblability is generally good. Therefore, the cost of the shift lever device can be reduced. Moreover, since the moderation block rotates together with the shift lever and the leaf spring is elastically deformed at a fixed position, the spring receiving portion can be formed integrally with the housing, and the support strength and durability of the leaf spring are improved. I do.

[Brief description of the drawings]

FIG. 1 is a front view of a shift lever device showing an embodiment of the present invention.

FIG. 2 is a sectional side view of FIG.

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is a partially enlarged perspective view of FIG. 1;

FIG. 5 is a perspective view showing a modification of FIG. 4;

FIG. 6 is a partially enlarged perspective view showing a second embodiment of the present invention.

FIG. 7 is a partially enlarged perspective view showing a third embodiment of the present invention.

FIG. 8 is a side view of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Housing 5 ... Shift lever 7 ... Moderation lever 8 ... Moderation groove 9 ... Leaf spring 10 ... Side wall 11 ... Spring receiving part 12 ... Middle fulcrum part 14 ... Screw 15 ... Projection part 16 ... Substantially triangular prism-shaped projection 17 ... Substantially triangular bottom

Claims (5)

[Claims] 1. An automatic transmission having a moderation lever that rotates integrally with a shift lever, and pressing the other end of a leaf spring against a moderation groove formed in the moderation lever to generate a moderation feeling during shifting. In the shift lever device, one end of the leaf spring is supported by a spring receiving portion protruding from a side wall of a housing that rotatably supports the shift lever, and between the one end and the other end of the leaf spring. A shift lever device, characterized in that an intermediate fulcrum that abuts on the upper surface of the intermediate portion is provided on the side wall. 2. The shift according to claim 1, wherein the spring receiving portion is a cylindrical projection, and the other end of the leaf spring is formed in an annular shape rotatably fitted in the cylindrical projection. Lever device. 3. The shift lever device according to claim 1, wherein the spring receiving portion is a protrusion having a flat surface for connecting one end of the flat leaf spring with a screw. 4. The device according to claim 1, wherein the spring receiving portion is a substantially triangular prism-shaped projection having a substantially triangular bottom, and the other end of the leaf spring is formed in an annular shape mounted on the substantially triangular bottom. The shift lever device as described in the above. 5. The shift lever device according to claim 1, wherein the intermediate fulcrum has a retaining portion for a leaf spring.